Climate Overview
The climate in Trincomalee Airport is hot. The average annual temperature is 28°C and approximately 1429mm of precipitation falls per year. November is the wettest month, receiving around 410mm of rainfall. Trincomalee Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Trincomalee Airport has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is June, when average highs reach 33°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 25°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Trincomalee Airport is a fairly wet location, receiving approximately 1429mm of precipitation annually, which averages out to around 119mm per month. The wettest month is November, averaging 410mm of rainfall. December and October also tend to see above-average precipitation. The driest month is June, with just 16mm. That's 394mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Trincomalee Airport is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 12km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 15km/h in winter, 13km/h in spring, 21km/h in summer, 15km/h in autumn.
Seasons
87 days until Winter
It is currently autumn in Trincomalee Airport, which began on September 23, 2026. Trincomalee Airport sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in June at around 33°C, while the coldest stretch bottoms out in January near 25°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 26 to 32°C. Precipitation is moderate at around 186mm for the season, averaging 62mm per month. Winds are generally light, averaging 13km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 27 to 33°C. Rainfall is relatively light, with around 103mm over the season and a monthly average of 34mm. Winds are moderate at around 21km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 32°C. Rainfall is heavy, totalling around 669mm across the season with a monthly average of 223mm. Winds are generally light, averaging 15km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 471mm across the season with a monthly average of 157mm. Winds are moderate at around 15km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Trincomalee Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
